分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps)
鯉形目 (Carps) >
Cyprinidae (Minnows or carps)
鯉科 (Minnows or carps) > Smiliogastrinae
Etymology: Enteromius: Greek, enteron = intestine + Greek, myo, mys = muscle (Ref. 45335); venustus: From the latin for pretty, and alludes to the attractive appearance of this small fish in life (Ref. 48244).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
Africa: endemic to Pangani River drainage (Ref. 48244, Ref. 52331).
非洲: Pangani 河流域的特有種.(參考文獻 48244, 參考文獻 52331)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 48244)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Body moderately compressed, its depth equal to or a little greater than the length of the head (Ref. 48244). Snout rounded, shorter than the eye diameter (Ref. 48244). Anterior barbel short, posterior barbel longer, extending as far as the vertical to the mid-point of the pupil of the eye (Ref. 48244). Teeth with recurved crowns; the teeth formula 2.3.5-5.3.2 (Ref. 48244). Well developed sunken pit-lines are present on the cheek and operculum and on the dorsal surface of the head; there may be as many as 12 lines between the preoperculum and the anterior orbital margin (Ref. 48244). Scales have radiate striae (Ref. 48244): 22-25 lateral line scales, 4½-5 scales between the dorsal fin origin and lateral line, 1½-2 scales between lateral line and pelvic insertion (Ref. 48244). Lateral line complete (Ref. 48244). Dorsal fin is on or slightly in advance of the perpendicular to the pelvic fin insertion; III/7 or III/8 rays, the third unbranched ray not ossified and flexible (Ref. 48244). Anal fin has III/5 rays (Ref. 48244). The pectoral fin does not reach the base of the pelvic fin (Ref. 48244). The caudal peduncle is relative slender, its depth 1.36 to 1.76 times in its length (Ref. 48244). The post Weberian vertebral count is 27 (Ref. 48244). The upper flanks, caudal peduncle and caudal fin are orange-red colored in life (Ref. 48244). A dark midlateral stripe of varying intensity runs from the tip of the snout to the base of the caudal fin; a small, rounded black spot is at the base of the caudal fin and patches of pigment about the origin of the dorsal and on the base of the anal fin (Ref. 48244).
身體中等側扁, 它的深度等於或稍微大於頭部的長度.(參考文獻 48244) 吻圓的, 短於眼直徑.(參考文獻 48244) 前面的觸鬚短又在後部的觸鬚更長的, 遙遠地延伸到眼的瞳孔的垂直到中央點.(參考文獻 48244) 牙齒有後彎的冠; 齒公式 2.3.5-5.3.2.(參考文獻 48244) 下沉凹洞的發展良好的-線在頰部與鰓蓋與頭部的背部表面上出現; 在那裡可能是在前鰓蓋骨與前面的眼窩邊緣之間的多達 12條行。 (參考文獻 48244) 鱗片有放射的陷紋:(參考文獻 48244) 22-25個側線鱗片,4?在背鰭起源與側線之間的 -5個鱗片,1?在側線與腹鰭嵌入之間的 -2個鱗片.(參考文獻 48244) 側線完整.(參考文獻 48244) 背鰭是或者之上在那略前方垂直於腹鰭嵌入; 3/7 或 3/8個鰭條, 第三個不分枝的鰭條不鈣化了與柔韌有彈性的.(參考文獻 48244) 臀鰭有 3/5個鰭條。 (參考文獻 48244) 胸鰭不會到腹鰭基底。 (參考文獻 48244) 尾梗是相關的細長, 它的深度 1.36 到 1.76 倍於體長.(參考文獻 48244) 後 Weberian 脊椎骨數是 27 。 (參考文獻 48244) 上面的側面, 尾柄與尾鰭鰭是橘紅色的色彩活著時.(參考文獻 48244) 從吻尖到尾鰭基底改變強烈的深色側面中央斑紋; 在尾鰭基底與有顏色的區塊的一個小的, 圓形的黑色斑點是大約背部的起源與在臀鰭的基底上.(參考文獻 48244)
Type specimens of Barbus venustus were caught in shallow water among open stands of the emergent grass Paspalidium geminatum in the Nyumba ya Mungu reservoir; it was taken in July and August at the onset of the dry season but with the lake level still close to its maximum (Ref. 48244). Gut content includes cladocerans, insect fragments, plant material and fine sand (Ref. 48244).
Barbus venustus 的模式標本在 Nyumba ya Mungu 水庫於在突出草 Paspalidium geminatum 的開放臺子之中的淺水區捕獲; 它在七月與八月採集在乾季但是有的開始湖面仍接近它的極大.(參考文獻 48244) 消化道內容包括水蚤，昆蟲碎片，植物與細砂。 (參考文獻 48244)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: Pangani 河流域的特有種.(參考文獻 48244, 參考文獻 52331)
Bailey, R.G., 1980. A new species of small Barbus (Pisces, Cyprinidae) from Tanzania, East Africa. Bull. Br. Mus. nat. Hist. (Zool.) 38(3):141-144. (Ref. 48244)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
人類使用
漁業: 沒有興趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00523 - 0.02406), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (tm<1).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
